(Welcome to The Best Movies You’ve Never Seen, a series that takes a look at slightly more obscure, under-the-radar, or simply under-appreciated movies. In this edition, we take a look at the best South Korean horror movies you’ve never seen.)

Train to Busan and The Wailing are two of the best horror films in recent years, and they couldn’t be more different. The former is a highly energetic and suspenseful zombie tale while the latter blends a methodically paced battle between good and evil with some incredibly intense sequences. Toss in less recent fare like Thirst, The Host, and A Tale of Two Sisters, and it’s clear that South Korea is home to some terrific and terrifying horror movies.

Of course, as you probably surmised by the title of this post, I’m not here to talk about the great movies you’ve already seen – I’m here to recommend ones you haven’t. Below, you’ll find six Korean chillers featuring murder, madness, monsters, and more. Some of the threats are supernatural while others are all too human, but all of them are worth watching with the lights off and a hot cocoa in your hand.

Keep reading for a look at the best South Korean horror movies you probably haven’t seen.